CN212717362U - Centrifugal impeller riveted by screw type blind rivet - Google Patents
Centrifugal impeller riveted by screw type blind rivet Download PDFInfo
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- CN212717362U CN212717362U CN202021585568.1U CN202021585568U CN212717362U CN 212717362 U CN212717362 U CN 212717362U CN 202021585568 U CN202021585568 U CN 202021585568U CN 212717362 U CN212717362 U CN 212717362U
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- centrifugal impeller
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Abstract
The utility model relates to the technical field of ventilation equipment, in particular to a centrifugal impeller riveted by a spiral blind rivet, which comprises a chassis and an upper cover, wherein a plurality of blades are uniformly distributed between the chassis and the upper cover at intervals, bent parts are arranged at two ends of the blades, a plurality of positioning holes and fixing holes are formed on the bent parts, the chassis and the upper cover are both provided with mounting structures matched with the positioning holes and the fixing holes, and at least one positioning structure matched with the positioning holes is arranged on the chassis and/or the upper cover; however, the blades can be quickly positioned and installed, and meanwhile, the assembly is quick and convenient, so that the blade positioning device has the characteristics of simple and reasonable structure and convenience in use; in addition, the inner side edge of the blade is designed to be inclined, and the inner side edge is provided with an arc-shaped unfilled corner, so that the air quantity is increased, the efficiency is improved, the resistance of wind is reduced, the noise is reduced, the requirement of a user can be met, and the practical value is high.
Description
Technical Field
The utility model relates to a ventilation equipment technical field, concretely relates to centrifugal impeller of screw-tupe blind rivet riveting.
Background
The centrifugal impeller made of metal is a common product in the field of ventilation equipment, and the structure of the centrifugal impeller comprises a metal front ring, a metal chassis and a plurality of metal blades arranged between the metal front ring and the metal chassis, however, the angle of each blade is placed to play a certain role in the air volume.
However, in order to change the arrangement angle of the blades, the assembly difficulty of the centrifugal impeller is increased, so that the current assembly mode is complex, the assembly convenience is affected, and the requirements of users cannot be met, and therefore, research and improvement on the structure of the centrifugal impeller are needed; in order to solve the above problems, the present invention is proposed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a centrifugal impeller of screw-tupe blind rivet riveting to solve at least one of the above-mentioned defect that prior art exists.
In order to achieve the above purpose, the utility model provides a following technical scheme: a centrifugal impeller riveted by a spiral blind rivet comprises a chassis and an upper cover, wherein a plurality of blades are uniformly distributed between the chassis and the upper cover at intervals, bent parts are arranged at two ends of each blade, a plurality of positioning holes and fixing holes are formed in the bent parts, the chassis and the upper cover are respectively provided with an installation structure matched with the positioning holes and the fixing holes, and at least one positioning structure matched with the positioning holes is arranged on the chassis and/or the upper cover.
The utility model discloses a further improvement, the locating hole with the fixed orifices is same structure.
The utility model discloses a further improvement, the fixed orifices pass through the mounting with mounting structure fixed connection.
The utility model discloses a further improvement, the inboard side of blade is the inboard side of slope, just inboard side upper end has the unfilled corner of arc form.
The utility model discloses a further improvement, the blade is kept away from the one end of inboard limit is the outside limit, the outside limit is the outside limit of slope.
The utility model discloses a further improvement, blade one side has the guiding gutter.
The utility model discloses a further improvement, the blade has pressure surface and suction surface, wherein, the guiding gutter is located the surface of suction surface.
The utility model discloses a further improvement, the blade is the arc form, the blade slope is fixed in on the chassis.
The utility model discloses a further improvement, the inclination that the inboard edge of blade extends to the central direction slope of keeping away from the chassis is 5-10.
The utility model discloses a further improvement, location structure's quantity is two at least, and is row's distribution.
Compared with the prior art, the utility model discloses following beneficial effect has:
the centrifugal impeller riveted by the spiral blind rivet comprises a chassis and an upper cover, wherein a plurality of blades are uniformly distributed between the chassis and the upper cover at intervals, bent parts are arranged at two ends of each blade, a plurality of positioning holes and fixing holes are formed in the bent parts, the chassis and the upper cover are respectively provided with an installation structure matched with the positioning holes and the fixing holes, and at least one positioning structure matched with the positioning holes is arranged on the chassis and/or the upper cover; through the design, the blades can be quickly positioned and installed, and meanwhile, the assembly is quick and convenient, so that the blade positioning device has the characteristics of simple and reasonable structure and convenience in use; in addition, the inner side edge of the blade is designed to be inclined, and the inner side edge is provided with an arc-shaped unfilled corner, so that the air quantity is increased, the efficiency is improved, the resistance of wind is reduced, the noise is reduced, the requirement of a user can be met, and the practical value is high.
The invention is further described with reference to the drawings and the specific embodiments.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic diagram of the explosion structure of the present invention;
FIG. 3 is a schematic view of the overall structure of the blade of the present invention;
fig. 4 is an enlarged schematic view of a portion a of fig. 2 according to the present invention.
Reference numerals: 1. a chassis; 101. a mounting structure; 102. a positioning structure; 2. an upper cover; 3. a blade; 301. a bending section; 302. positioning holes; 303. a fixing hole; 304. an inner side edge; 305. unfilled corners; 306. an outer side edge; 307. a diversion trench; 308. a pressure surface; 309. a suction surface; 4. and a fixing member.
Detailed Description
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1 to 4, the technical solution adopted by the present embodiment is as follows: a centrifugal impeller riveted by a spiral blind rivet comprises a chassis 1 and an upper cover 2, wherein a plurality of blades 3 are uniformly distributed between the chassis 1 and the upper cover 2 at intervals, bent parts 301 are arranged at two ends of the blades 3, a plurality of positioning holes 302 and fixing holes 303 are formed in the bent parts 301, the chassis 1 and the upper cover 2 are both provided with mounting structures 101 matched with the positioning holes 302 and the fixing holes 303, the mounting structures 101 are mounting holes, and at least one positioning structure 102 matched with the positioning holes 302 is arranged on the chassis 1 and/or the upper cover 2; the positioning hole 302 and the fixing hole 303 are of the same structure; the fixing hole 303 is fixedly connected with the mounting structure 101 through a fixing piece 4; the number of the positioning structures 102 is at least two, and the positioning structures are distributed in rows;
during assembly, the positioning hole 302 of the blade 3 is correspondingly assembled on the positioning structure 102 of the chassis 1 to play a positioning role, and then the mounting structure 101 of the chassis 1 is fixed with the fixing hole 303 at the bottom of the blade 3 through the fixing piece 4 to play a fixing and limiting role; then, the mounting structure 101 of the upper cover 2 is fixed with the fixing hole 303 at the upper end of the blade 3 through the fixing piece 4; however, the blades 3 can be quickly positioned and installed, and meanwhile, the assembly is quick and convenient, so that the blade positioning device has the characteristics of simple and reasonable structure and convenience in use;
the inner side edge 304 of the blade 3 is an inclined inner side edge 304, and the upper end of the inner side edge 304 is provided with an arc-shaped unfilled corner 305; the end of the blade 3 away from the inner side edge 304 is an outer side edge 306, and the outer side edge 306 is an inclined outer side edge 306; thereby increasing the air inlet area, reducing the friction between the inner edge of the blade 3 and the wind, and further reducing the noise generated by the impeller;
furthermore, a diversion trench 307 is arranged on one side of the blade 3; the blade 3 has a pressure side 308 and a suction side 309, wherein the flow guide groove 307 is located on the surface of the suction side 309; thereby improving the air quantity;
the blades 3 are arc-shaped, and the blades 3 are obliquely fixed on the chassis 1, so that the resistance of wind is reduced, and the efficiency is improved; the inner side edge 304 of the blade 3 extends obliquely away from the center of the chassis by an angle of inclination of 5-10 deg.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The detachable installation mode has various modes, for example, a mode of matching with a buckle through plugging, for example, a mode of connecting through a bolt, and the like.
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described above with reference to the embodiments and the accompanying drawings, so as to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the coupling/connection relationships mentioned herein do not mean that the components are directly connected, but mean that a better coupling structure can be formed by adding or reducing coupling accessories according to specific implementation conditions.
The above embodiments are only used for further explanation of the present invention, and it is not understood that the present invention is limited by the protection scope of the present invention, and the technical engineers in the field are right according to the above contents of the present invention.
Claims (10)
1. A centrifugal impeller for screw-type blind rivet staking, comprising: the novel fan blade comprises a chassis (1) and an upper cover (2), wherein a plurality of blades (3) are uniformly distributed between the chassis (1) and the upper cover (2) at intervals, bent parts (301) are arranged at two ends of each blade (3), a plurality of positioning holes (302) and fixing holes (303) are formed in the bent parts (301), the chassis (1) and the upper cover (2) are provided with mounting structures (101) matched with the positioning holes (302) and the fixing holes (303), and at least one positioning structure (102) matched with the positioning holes (302) is arranged on the chassis (1) and/or the upper cover (2).
2. A screw-type blind-rivet centrifugal impeller according to claim 1, wherein: the positioning hole (302) and the fixing hole (303) are of the same structure.
3. A screw-type blind-rivet centrifugal impeller according to claim 1, wherein: the fixing hole (303) is fixedly connected with the mounting structure (101) through a fixing piece (4).
4. A screw-type blind-rivet centrifugal impeller according to claim 1, wherein: the inner side (304) of the blade (3) is an inclined inner side (304), and the upper end of the inner side (304) is provided with an arc-shaped unfilled corner (305).
5. A screw-type blind-rivet centrifugal impeller according to claim 4, wherein: one end of the blade (3) far away from the inner side edge (304) is an outer side edge (306), and the outer side edge (306) is an inclined outer side edge (306).
6. A screw-type blind-rivet centrifugal impeller according to claim 1, wherein: one side of the blade (3) is provided with a flow guide groove (307).
7. A screw-type blind-rivet centrifugal impeller according to claim 6, wherein: the blade (3) has a pressure side (308) and a suction side (309), wherein the flow guide groove (307) is located on the surface of the suction side (309).
8. A screw-type blind-rivet centrifugal impeller according to claim 1, wherein: the blades (3) are arc-shaped, and the blades (3) are obliquely fixed on the chassis (1).
9. A screw-type blind-rivet centrifugal impeller according to claim 1, wherein: the inner side edge (304) of the blade (3) extends towards the direction far away from the center of the chassis (1) in an inclined way at an inclined angle of 5-10 degrees.
10. A screw-type blind-rivet centrifugal impeller according to claim 1, wherein: the number of the positioning structures (102) is at least two, and the positioning structures are distributed in rows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021585568.1U CN212717362U (en) | 2020-08-03 | 2020-08-03 | Centrifugal impeller riveted by screw type blind rivet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021585568.1U CN212717362U (en) | 2020-08-03 | 2020-08-03 | Centrifugal impeller riveted by screw type blind rivet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212717362U true CN212717362U (en) | 2021-03-16 |
Family
ID=74912096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021585568.1U Active CN212717362U (en) | 2020-08-03 | 2020-08-03 | Centrifugal impeller riveted by screw type blind rivet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212717362U (en) |
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2020
- 2020-08-03 CN CN202021585568.1U patent/CN212717362U/en active Active
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